Question

The sides of a triangle are 2x+4, 5x+2, and 4x-3. What is the perimeter if x=2

Answer 1

25

Explanation:

Side 1: 2x+4 Side 2: 5x+2 Side 3: 4x-3

Substitute-

2(2)+4 5(2)+2 4(2)-3

Multiply-

4+4 10+2 8-3

Combine Terms-

16 + 12 + 5

=25

Answer 2

25

Explanation:

The three sides of a triangle are 2x+4, 5x+2, and 4x-3.

The sum is the perimeter

P = 2x+4+ 5x+2+ 4x-3

Combine like terms

P = 11x +3

Let x =2

P = 11*2 +3

P = 22+3

P =25